Experimental research on performances of the imaging plates applied in gamma-ray imaging

被引：2
作者：
Qi Jian-Min [1 ]
Zhang Fa-Qiang [1 ]
Chen Jin-Chuan [1 ]
Xie Hong-Wei [1 ]
机构：
[1] China Acad Engn Phys, Inst Nucl Phys & Chem, Mianyang 621900, Peoples R China
来源：
CHINESE PHYSICS C | 2014年 / 38卷 / 01期
关键词：
gamma-ray imaging; imaging plate; linear calibration; time attenuation; gamma-ray sensitivity; DETECTORS;
D O I：
10.1088/1674-1137/38/1/016001
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
Experimental studies on the basic characteristics of IPs applied in gamma-ray imaging are carried out by utilizing isotopic gamma-ray sources. The 1.25 MeV gamma-ray sensitivity of the BAS-MS and BAS-TR imaging plates and their enhanced sensitivity by covering appropriate Compton conversion foils are measured based on the studies of the image intensity linear calibration, time attenuation laws and the influence of scanning parameter settings. The energy-dependent gamma-ray sensitivity of the IPs is also obtained by the studies of the measured sensitivity and the Monte Carlo simulated energy deposition in the IPs' sensitive layer. Furthermore, a method of a sandwich detection structure as well as its primary experimental validations are presented in order to increase the gamma-to-neutron ratio in a gamma/n mixed radiation field.
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收藏
页数：6
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